Adjustable ball holder



FIG. 1 is a perspective view of an adjustable ball holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a right side elevational view thereof.

The undisclosed bottom view is planar and unornamented. 

The ornamental design for adjustable ball holder, as shown and described. 